feat: support Model Yuan2.0, a new generation Fundamental Large Language Model developed by IEIT System

docs/model_support.md

@@ -62,6 +62,10 @@
 - [WizardLM/WizardCoder-15B-V1.0](https://huggingface.co/WizardLM/WizardCoder-15B-V1.0)
 - [Xwin-LM/Xwin-LM-7B-V0.1](https://huggingface.co/Xwin-LM/Xwin-LM-70B-V0.1)
 - [IEITYuan/Yuan2-2B/51B/102B-hf](https://huggingface.co/IEITYuan)
+- [IEITYuan/Yuan2-2B-Janus-hf](https://huggingface.co/IEITYuan/Yuan2-2B-Janus-hf)
+- [IEITYuan/Yuan2-2B-hf](https://huggingface.co/IEITYuan/Yuan2-2B-hf)
+- [IEITYuan/Yuan2-51B-hf](https://huggingface.co/IEITYuan/Yuan2-51B-hf)
+- [IEITYuan/Yuan2-102B-hf](https://huggingface.co/IEITYuan/Yuan2-102B-hf)
 - Any [EleutherAI](https://huggingface.co/EleutherAI) pythia model such as [pythia-6.9b](https://huggingface.co/EleutherAI/pythia-6.9b)
 - Any [Peft](https://github.com/huggingface/peft) adapter trained on top of a
   model above.  To activate, must have `peft` in the model path.  Note: If

fastchat/conversation.py

@@ -31,6 +31,7 @@ class SeparatorStyle(IntEnum):
     CHATGLM3 = auto()
     DEEPSEEK_CHAT = auto()
     METAMATH = auto()
+    YUAN2 = auto()
 
 
 @dataclasses.dataclass
@@ -245,6 +246,18 @@ def get_prompt(self) -> str:
                 else:
                     ret += role + ":"
             return ret
+        elif self.sep_style == SeparatorStyle.YUAN2:
+            seps = [self.sep, self.sep2]
+            ret = ""
+            if self.system_message:
+                ret += system_prompt + seps[1]
+            for _, message in self.messages:
+                if message:
+                    ret += message + '<n>'
+                else:
+                    ret += ""
+            ret = ret.rstrip('<n>') + seps[0]
+            return ret
         else:
             raise ValueError(f"Invalid style: {self.sep_style}")
 
@@ -1420,6 +1433,22 @@ def get_conv_template(name: str) -> Conversation:
     )
 )
 
+# Yuan2.0 chat template
+# source: https://huggingface.co/IEITYuan/Yuan2-2B-Janus-hf/blob/main/tokenizer_config.json#L6
+register_conv_template(
+    Conversation(
+        name="yuan2",
+        roles=("user", "assistant"),
+        sep_style=SeparatorStyle.YUAN2,
+        sep="<sep>",
+        sep2="\n",
+        stop_token_ids=[
+            77185,
+        ],  # "<eod>"
+        stop_str="<eod>",
+    )
+)
+
 # Solar-10.7B Chat Template
 # Reference: https://huggingface.co/upstage/SOLAR-10.7B-Instruct-v1.0/blob/main/tokenizer_config.json
 register_conv_template(

fastchat/model/model_adapter.py

@@ -2101,6 +2101,40 @@ def match(self, model_path: str):
     def get_default_conv_template(self, model_path: str) -> Conversation:
         return get_conv_template("deepseek-chat")
 
+class Yuan2Adapter(BaseModelAdapter):
+    """The model adapter for Yuan2.0"""
+
+    def match(self, model_path: str):
+        return "yuan2" in model_path.lower()
+
+    def load_model(self, model_path: str, from_pretrained_kwargs: dict):
+        revision = from_pretrained_kwargs.get("revision", "main")
+        # from_pretrained_kwargs["torch_dtype"] = torch.bfloat16
+        tokenizer = LlamaTokenizer.from_pretrained(
+            model_path,
+            add_eos_token=False,
+            add_bos_token=False,
+            eos_token='<eod>',
+            eod_token='<eod>',
+            sep_token='<sep>',
+            revision = revision,
+        )
+        tokenizer.add_tokens(
+            ['<sep>', '<pad>', '<mask>', '<predict>', '<FIM_SUFFIX>', '<FIM_PREFIX>', '<FIM_MIDDLE>', '<commit_before>',
+             '<commit_msg>', '<commit_after>', '<jupyter_start>', '<jupyter_text>', '<jupyter_code>',
+             '<jupyter_output>', '<empty_output>'], special_tokens=True)
+
+        model = AutoModelForCausalLM.from_pretrained(
+            model_path,
+            # device_map='auto',
+            trust_remote_code=True,
+            **from_pretrained_kwargs
+        )
+        return model, tokenizer
+
+    def get_default_conv_template(self, model_path: str) -> Conversation:
+        return get_conv_template("yuan2")
+
 
 class MetaMathAdapter(BaseModelAdapter):
     """The model adapter for MetaMath models"""
@@ -2132,7 +2166,7 @@ def get_default_conv_template(self, model_path: str) -> Conversation:
         return get_conv_template("solar")
 
 
-class Yuan2Adapter(BaseModelAdapter):
+class YuanAdapter(BaseModelAdapter):
     """The model adapter for Yuan"""
 
     def match(self, model_path: str):
@@ -2248,10 +2282,11 @@ def get_default_conv_template(self, model_path: str) -> Conversation:
 register_model_adapter(PplxAIAdapter)
 register_model_adapter(DeepseekCoderAdapter)
 register_model_adapter(DeepseekChatAdapter)
+register_model_adapter(Yuan2Adapter)
 register_model_adapter(MetaMathAdapter)
 register_model_adapter(BagelAdapter)
 register_model_adapter(SolarAdapter)
-register_model_adapter(Yuan2Adapter)
+register_model_adapter(YuanAdapter)
 
 # After all adapters, try the default base adapter.
 register_model_adapter(BaseModelAdapter)

fastchat/model/model_registry.py

@@ -27,6 +27,12 @@ def get_model_info(name: str) -> ModelInfo:
             name, "", "Register the description at fastchat/model/model_registry.py"
         )
 
+register_model_info(
+    ["IEITYuan/Yuan2-2B-Janus-hf", "IEITYuan/Yuan2-2B-hf", "IEITYuan/Yuan2-51B-hf", "IEITYuan/Yuan2-102B-hf"],
+    "IEIT-Yuan2",
+    "https://github.com/IEIT-Yuan/Yuan-2.0",
+    "Yuan2.0 is a new generation Fundamental Large Language Model developed by IEIT System.",
+)
 
 register_model_info(
     ["mixtral-8x7b-instruct-v0.1", "mistral-7b-instruct"],